高差H=1/2gt^2
平距L=v0t
H/L=tan30°
(1/2gt^2)/v0t=√3/3
t=2√3v0/(3g)=2√3*10/(3*10)=2√3/3
t^2=4/3
H=1/2gt^2=1/2*10*4/3=20/3
AB=H/sin30°=2H=40/3m
vy^2=2gH=2*10*20/3=400/3
vB=√(v0^2+vy^2)
高差H=1/2gt^2
平距L=v0t
H/L=tan30°
(1/2gt^2)/v0t=√3/3
t=2√3v0/(3g)=2√3*10/(3*10)=2√3/3
t^2=4/3
H=1/2gt^2=1/2*10*4/3=20/3
AB=H/sin30°=2H=40/3m
vy^2=2gH=2*10*20/3=400/3
vB=√(v0^2+vy^2)